Authentication flaw

2018-03-1318:29:00

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9.4 High

AI Score

Confidence

High

0.048 Low

EPSS

Percentile

92.7%

JSON

transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.

CPENameOperatorVersion
debian_linuxeq8.0
debian_linuxeq9.0
paramikolt1.17.6
paramikoge1.18.0
paramikolt1.18.5
paramikoge2.0.0
paramikolt2.0.8
paramikoge2.1.0
paramikolt2.1.5
paramikoge2.2.0

Name	Operator	Version
debian_linux	eq	8.0
debian_linux	eq	9.0
paramiko	lt	1.17.6
paramiko	ge	1.18.0
paramiko	lt	1.18.5
paramiko	ge	2.0.0
paramiko	lt	2.0.8
paramiko	ge	2.1.0
paramiko	lt	2.1.5
paramiko	ge	2.2.0